biol 227 FINAL Exam Questions with
Complete Answers
Distinct characteristics of Chytrids
1. do NOT form elaborate mycelia
2. Have rhizoids rather for anchoring into substrates
3. Are described as a thallus rather than a mycelium
4. feed on living or decaying animals
Distinct characteristics of Zygomycetes
1. Coenocytic moulds
2. Do NOT for fruiting bodies
3. Have sporangiophores
4. Asexual reproduction is dominant
Distinct features of Glomeromycetes
1. Exclusively Asexual
2. Form arbuscular mycorrhiza with plant roots
3. Produce haustoria
Distinct features of Ascomycetes
1. Septate hyphae
2. distinct spore-producing structures: ascus (sexual) and conidiophores (asexual).
what kind of fungi is this?
Yeast
What is a Lichen?
A symbiotic association between a photosynthetic microorganism (green algae or
cyanobacteria) and a fungus (usually ascomycetes)
, Basidiomycetes
1. Produce large conspicuous fruiting bodies called basidiocarps.
2. Spores rest on top of tiny buds called sterigmata that rest on each basidium.
3. The basidiospores are discharged from the sterigmata.
5 key traits present in (nearly) ALL embryophytes that are absent in charophytes.
1. Alteration of generation
2. Multicellular, dependent embryos
3. Walled spores produced in sporangia
4. Multicellular gametangia
5. Apical meristems
Bryophytes (mosses)
1. non-vascular seedless plants
2. Gametophytes are larger and longer-living
3. Have both an Archegoniophore (female) and antheridiophore (male)
Name this structure & defining features
Marchantia sporophyte
1. Foot- acts like a placenta
2. Seta- move nutrients from the placenta to the sporangium
3. Elaters- aid in the dispersal of spores
Name this structure & defining features
Marchantia archegoniophore
1. Archegonia, each containing an egg.
seedless vascular plants
Complete Answers
Distinct characteristics of Chytrids
1. do NOT form elaborate mycelia
2. Have rhizoids rather for anchoring into substrates
3. Are described as a thallus rather than a mycelium
4. feed on living or decaying animals
Distinct characteristics of Zygomycetes
1. Coenocytic moulds
2. Do NOT for fruiting bodies
3. Have sporangiophores
4. Asexual reproduction is dominant
Distinct features of Glomeromycetes
1. Exclusively Asexual
2. Form arbuscular mycorrhiza with plant roots
3. Produce haustoria
Distinct features of Ascomycetes
1. Septate hyphae
2. distinct spore-producing structures: ascus (sexual) and conidiophores (asexual).
what kind of fungi is this?
Yeast
What is a Lichen?
A symbiotic association between a photosynthetic microorganism (green algae or
cyanobacteria) and a fungus (usually ascomycetes)
, Basidiomycetes
1. Produce large conspicuous fruiting bodies called basidiocarps.
2. Spores rest on top of tiny buds called sterigmata that rest on each basidium.
3. The basidiospores are discharged from the sterigmata.
5 key traits present in (nearly) ALL embryophytes that are absent in charophytes.
1. Alteration of generation
2. Multicellular, dependent embryos
3. Walled spores produced in sporangia
4. Multicellular gametangia
5. Apical meristems
Bryophytes (mosses)
1. non-vascular seedless plants
2. Gametophytes are larger and longer-living
3. Have both an Archegoniophore (female) and antheridiophore (male)
Name this structure & defining features
Marchantia sporophyte
1. Foot- acts like a placenta
2. Seta- move nutrients from the placenta to the sporangium
3. Elaters- aid in the dispersal of spores
Name this structure & defining features
Marchantia archegoniophore
1. Archegonia, each containing an egg.
seedless vascular plants
